diff --git a/lib/server.js b/lib/server.js
index 0c0eacd..811d927 100644
--- a/lib/server.js
+++ b/lib/server.js
@@ -25,18 +25,16 @@ function createServer(options, callback) {
     createWatch(app, fn);
   }
 
-  if (callback) {
-    callback(null, app);
-  } else {
-    log.info('server', 'http://127.0.0.1:' + options.port);
-    app.listen(options.port).on('error', function(e) {
-      if (e.code === 'EADDRINUSE') {
-        log.error('error', 'this port is in use, change to another one');
-      } else {
-        throw e;
-      }
-    });
-  }
+  log.info('server', 'http://127.0.0.1:' + options.port);
+  app.listen(options.port).on('error', function(e) {
+    if (e.code === 'EADDRINUSE') {
+      log.error('error', 'this port is in use, change to another one');
+    } else {
+      throw e;
+    }
+  });
+
+  callback && callback(null, app);
 }
 
 var io;